Hurdle boom holder

Abstract

A cupholder for supporting a hurdle boom (10) includes a gliding part (1) which is sleeve-like and mounted around a pillar so as to be moved vertically on the pillar and a support (2) on which the end of the boom (1) is supported. The sleeve-like gliding part is broken at one point and a locking apparatus for the gliding part if formed by a tightening apparatus which pulls the opposite edges of the gliding part towards each other so that the gliding part presses against the pillar.

I claim: 
     
       1. An apparatus for holding an end of a hurdle boom at a desired height and horizontal orientation comprising: an upright pillar;   a gliding part in he form of a sleeve longitudinally split at one point only and mounted around said pillar, said gliding part having opposed free ends at the split point which are circumferentially spaced from one another in a rest position whereby said gliding part with said free ends in the rest position is freely movable vertically on said pillar;   a support attached to said gliding part at a position laterally opposite the split point and extending horizontally therefrom, said support including an upwardly facing horizontal surface which is concave in shape, such that the end of the boom rests vertically on said horizontal surface of said support; and   a tightening means which bridges said free ends of said gliding part for moving said free ends from the rest position to a precise restrained position where said free ends are circumferentially closed toward one another relative to the rest position and said gliding part is radially drawn into frictional engagement with said pillar to hold said gliding part vertically in place, whereby after moving said gliding part to a desired height and horizontal orientation while said free ends are circumferentially spaced from one another said tightening means then moves said free ends to the closed position to hold said support on said gliding part at the desired height and horizontal orientation.   
     
     
       2. An apparatus for holding an end of a hurdle boom as claimed in claim 1 wherein said tightening means includes an adjusting means for precisely adjusting a space between said free ends when said free ends are in the restrained position whereby the frictional engagement of said gliding part with said pillar is adjustable to a desired amount and the desired amount of frictional engagement is repeatedly attained each time said tightening means is actuated without adjusting said adjusting means. 
     
     
       3. An apparatus for holding an end of a hurdle boom as claimed in claim 1 wherein said tightening means further includes an opening means for moving said free ends from the rest position to an open position where said free ends are circumferentially spaced from one another more than in the rest position whereby said gliding part is more completely radially moved away from frictional engagement with said pillar and hence is more freely movable vertically on said pillar to the desired height and horizontal orientation. 
     
     
       4. An apparatus for holding an end of a hurdle boom as claimed in claim 1 wherein said pillar has a polygonal horizontal cross section; and wherein said gliding part includes an inner periphery which is correspondingly polygonal shaped in horizontal cross section. 
     
     
       5. An apparatus for holding an end of a hurdle boom as claimed in claim 2 wherein said tightening means further includes an opening means for moving said free ends from the rest position to an open position where said free ends are circumferentially spaced from one another more than in the rest position whereby said gliding part is more completely radially moved away from frictional engagement with said pillar and hence is more freely movable vertically on said pillar to the desired height and horizontal orientation. 
     
     
       6. An apparatus for holding an end of a hurdle boom as claimed in claim 2 wherein said pillar has a polygonal horizontal cross section; and wherein said gliding part includes an inner periphery which is correspondingly polygonal shaped in horizontal cross section. 
     
     
       7. An apparatus for holding an end of a hurdle boom as claimed in claim 3 wherein said pillar has a polygonal horizontal cross section; and wherein said gliding part includes an inner periphery which is correspondingly polygonal shaped in horizontal cross section. 
     
     
       8. An apparatus for holding an end of a hurdle boom as claimed in claim 1 wherein said gliding part is reversible on said pillar; and wherein said support includes a second horizontal surface on an opposite side from said first mentioned horizontal surface, said second horizontal surface also being concave shaped such that the one of said horizontal surface which is uppermost receives and holds the end of the boom thereon.